A facile synthesis of sulfonated poly(diphenylamine) and the application as a novel hole injection layer in polymer light emitting diodes

Chen Yan Li, Ten Chin Wen, Tzung Fang Guo, Sheng Shu Hou

研究成果: Article同行評審

26 引文 斯高帕斯(Scopus)

摘要

Water-soluble sulfonated poly(diphenylamine) (SPDPA) was synthesized and applied as a hole injection layer (HIL). It was characterized in terms of 1H NMR, 13C NMR, elemental analysis (EA), UV-vis, Raman, ultraviolet photoelectron spectroscopies (UPS) and TGA thermal stability measurement. The high transparency in visible region and acceptable conductivity were beneficial as HIL material. The topographic image obtained from Atomic Force Microscope shows that the surface of SPDPA-coated indium tin oxide (ITO) is smoother than that of bare ITO. Raman spectra indicate that SPDPA possesses the higher oxidation and doping level due to SO3H group on the phenyl ring, rendering SPDPA the higher work function with 0.35 eV than PDPA from UPS spectra. The electroluminescence efficiency of polymer light emitting diode using poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene) (MEH-PPV) as an active layer and SPDPA as HIL can be reached 2.0 cd/A, showing the slightly better performance than that using PEDOT:PSS as HIL.

原文English
頁(從 - 到)957-964
頁數8
期刊polymer
49
發行號4
DOIs
出版狀態Published - 2008 2月 18

All Science Journal Classification (ASJC) codes

  • 有機化學
  • 聚合物和塑料
  • 材料化學

指紋

深入研究「A facile synthesis of sulfonated poly(diphenylamine) and the application as a novel hole injection layer in polymer light emitting diodes」主題。共同形成了獨特的指紋。

引用此